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Photo: Climate Reanalyzer, Climate Change Institute, University of Maine. Data from the NOAA Climate Forecast System Reanalysis (CFSR) and NWS Global Forecast System

North Carolina, West Virginia, Massachusetts and other states across the eastern U.S. saw snow this weekend as temperatures dropped to levels "virtually unheard of in May," the Washington Post's Capital Weather Gang reports.

Catch up quick: Arctic air crossed into the country from Canada on Friday, freezing Chicago and Indianapolis and dropping snow in the Northeast and across Appalachia.

  • A National Weather Service weather balloon near Washington Dulles International Airport recorded the area's coldest May reading on record at about 5,000 feet, the Post reports.
  • "From Texas to Maine, record lows for May 9 fell in every state in the eastern half of the Lower 48 north of Florida," Matthew Cappucci writes.

What's next: States east of the Appalachians can expect more near-record-low temperatures on Sunday, while most of the Midwest will begin to warm up late Saturday, the Post reports.

Go deeper: Polar vortex could bring record-cold temperatures in parts of Midwest, Northeast

Go deeper

Global warming breaks Canada's last intact ice shelf

A view above Ellesmere Island, Canada, in 2017.

Canada's only ice shelf broke apart due to a hot summer and climate change, the AP reports.

Why it matters: Ice shelves are between hundreds and thousands of years old and bulkier than long-term sea ice. Their disappearance from Canada showcases how the Arctic has warmed faster than the rest of globe.

Dan Primack, author of Pro Rata
5 mins ago - Economy & Business

IPOs keep rolling despite stock market volatility

Illustration: Aïda Amer/Axios

Stock market volatility is supposed to be kryptonite for IPOs, causing issuers to hide out in their private market caves.

Yes, but: This is 2020, when nothing matters.

Ben Geman, author of Generate
44 mins ago - Energy & Environment

Higher education expands its climate push

Illustration: Aïda Amer/Axios

New or expanded climate initiatives are popping up at several universities, a sign of the topic's rising prominence and recognition of the threats and opportunities it creates.

Why it matters: Climate and clean energy initiatives at colleges and universities are nothing new, but it shows expanded an campus focus as the effects of climate change are becoming increasingly apparent, and the world is nowhere near the steep emissions cuts that scientists say are needed to hold future warming in check.